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Finding the Fourth Proportional to 351,402.12, 484,934.22 and 190,257.30

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Solution

The fourth proportional to 351,402.12, 484,934.22 and 190,257.30 is: 262,554.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,402.12 : 484,934.22 = 190,257.30 : x
  2. Step 2: Convert to fraction form
    351,402.12/484,934.22 = 190,257.30/x
  3. Step 3: Cross multiply
    351,402.12x = 484,934.22 × 190,257.30
  4. Step 4: Simplify right side
    351,402.12x = 92,262,275,374.81
  5. Step 5: Solve for x
    x = 92,262,275,374.81/351,402.12
  6. Step 6: Final answer
    x = 262,554.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.